Carburetor



Jan. l, 1924 R. W. KAMBAK CARBURETOR Filed April 6,

Patented Jan. 1, 1924.

UNITED STATES PATENT oFFlcs.

numana mea apra s.

Y To all whom it may concern:

Be it known that I, ROBERT W. KAMBAK, a citizen of the YUnited States,residin at Hi hmore, in the county of Hyde and tate of outh Dakota, havelnvented certain new and useful yImprovements in a Carburetor, of whichthe following is a specification.

This invention provides a carburetordesigned chiey for vaporizingkerosene and analogous heavy hydrocarbon whereby the same may beadvantageously and success# full used in the 'operation of the interna-lcom ustion engines thereby economizing in the cost of operation.

' In accordance with the present invention the kerosene or analogousfuel is supplied in regulated quantities to a chamber disposed in thepath of the exhaust whereb the fuel is vaporized and commingles withythe air on its way to the engine thereb producing the gaseous mixturewhich 1s utilized as the fuel medium in the operation of an internalcombustion engine.

i The drawings illustrate a referred embodiment of my invention. desireit to be understood, that in adapting the same to meet diiferentconditions, various changes in the form, proportion and minor details ofconstruction may be resorted to without departing from the nature of theinvention as claimed hereinafter.

Referring to the drawings,

Figure 1 is a sectional detail of a carburetor embodying the inventionshowing the same in operative position,

Figure 2 is a sectional detail at right.

an les to Fig. 1.

rresponding and like parts are referred to in the followingldescriptionand indicated in both views of t e drawings by like referencecharacters.

Referring to the drawin the numeral 1 designates an intake mani old and2 an exhaust manifold. These manifolds may be of any relativeconstruction and arran ment, however it is preferred to have t e intakemanifold 1 disposed above the exhaust manifold 2 and in close -relationthereto.

The fuel in the chamber 3 of the carburetor is located above the intakemanifold and the fuel is fed thereto automatically in a manner wellunderstood in the construction of carburatore. The fuel pi 4 leads fromany suitable source of supp y and its 1920. serial n. 371,5.

outlet is controlled by means of a needle valve 5 which is connectedwith the float lever 6 in a manner well understood. The float 7 isdisposed within the fuel chamber 3 of the carburetor and is controlled bthe change of level of the fuel therein. en the oat 7 is at the properosition the valve 5 is set thereby cutting oil' t e sutpply of fuel.When the float 7 descends by e owering of the level of the fuel in thefuel chamber 3 the valve 5 unseats and permits a proper supply of fuelto pass into the fuel chamber 3. A passage 8 is located at one side ofthe fuellchamber 3 and forms a part thereof and o ns into the intakemanifold 1. A thrott e valve 9 is located in the passage 8 and controlsthe amount of air passing therethrough. A chamber 10 is locatedintermediate the fuel chamber 3 and passa e 8 and is in communicationwith each. Te lower portion of the chamber llconstitutes a dash pot anda piston 11 is arranged to operate therein. A stem 12 is connected atits lower end with the piston 11 and operates through a boss-formedcentrall 1n a partition 13 which divides the cham er 10 so as to formthe top of the dash ot. A ring 14 is secured to the upper en of thechamber 10 and constitutes a valve seat for a valve 15 which is carriedby the uper end of the stem 12 and closes upwar and opens downwardl Anexpansible lical spring 16 mounts on the stem 12 normally exerts anupward pressure to hold the valve 15 seated and the tension of thisspring may be regulated so as to offer a reater or` less resistance tothe unseatng 4o the valve 15. Any suitable means may be provided forregulating the tension of the spring 16, said means being controlled bya thumb screw or analogous element 17.

A tube 18 extends through the bottom of the carburetor and projectsupwardly a short distance into the fuel chamber 3. The tube 18 passesthrough the intake manifold 1 and extends downwardly therefrom. The tube18 at a point a short distance above the bottom of the fuel chamber iscontracted as indicated at 19 to form a seat for a valve 20 whichcontrols the outflow of the fuel from the carburetor through the tube18. A lateral outlet 21 is provided in a side of the tube 18 above thevalve seat 19. When the valve 2O is moved upwardly the port oonstitutingthe lateral outlet 21 is uncovered so that the fue] ma pass from thefuel chamber 3 into the tu e 18. When the valve is lowered, the supplyof fuel to the tube 18 is cut olf. The valve 20 is carried by a lever 22which is fulcrumed intermediate of its ends to the body of thecarburetor. link 23 connects the lever 22 with the upper end of the stem12. Obviously a downward movement of the stem 12 -will effect an unseat'of the valve 20. The lower end of the tu e 18 extends into a chamber 24which extends into the exhaust manifold 2iand which has its upperportion connected to the lower The cham er 24 is closed at its lower endand opens'into the intake manifold 1 at its upper end. The chamber 24 isenlarged intermediate its upper and lower ends as indicated at 25whereby provision is had for expansion of the fuel when vaporized by theaction of the heat.

The manifolds 1 and 2 are connected with the engine in any preferred waybut in accordance with the present invention saiid.

manifolds preferably are disposed one above the other. On the suctionstroke of a piston a vacuum is created in the lintake manifold 1 and inthe passage 8 of the carburetor. This results in an unseating of thevalve 15 whereby air is drawn into the chamber 10, passage 8 and intakemanifold 1. As the valve 15 unseats b a downward movement, the fuelvalve 20 isunscatedby an upward movement. A certain amount of fuelpasses from the fuel chamber 3 of the carburetor into the tube 18 and isdelivered into the chamber 24 in which it is vaporized by the heatresultinglfrom the exhaust ases passing through t e exhaust manifol 2.-As the fuel is vaporized in the chamber 24 it rises and passestherefrom into the intake manifold and mixes with air passingtherethrough, thereby forming the. aseous mixture which is.utilized asthe. el medium for operating the internal combustion engme- Having thusfully described my invention rtion of the intake manifold l.,

what-I claim as new and desire to secure by Letters Patent, is

1. The combination with an exhaust and an intake manifold disposed oneabove the other in vertical alignment, of a carburetor including a fuelchamber, means for controlling the How of fuel into the chamber,

means connecting the chamber with one side of the intake manifold, anenlarged heating chamber disposed in the exhaust manifold andcommunicating with the intake manifold at a point adjacent the meansconnectin the fuel chamber with the intake manlfold, a Asupply tubeleading from the fuel chamber through the intake manifold and .into theheating` chamber, and valve means for controlling thc fiow of fuel fromthe fuel chamber into said heating chamber throu h said pipe.

2. 'Ehe combination with -an intake and an exhaust manifold disposed inrelative close roximity andV in vertical alignment, of a car uretorincluding a fuelchamber associated with the u per surface of the intakemanifold, means or controlling the flow of fuel into the chamber, a pipeconnecting the chamber with the intake manifold, an alr intake suctionoperated valve disposed in the pi e, an enlarged chamber disposed in theex aust manifold and adapted to be heated by the exhaust gases, meansconnecting the chamber #with the intake manifold at a point adjacent thepipe, a dependin municating withv the body an extending throii' h the.intake manifold and into the cham er, a valve for controlling the How-offuel from` the fuel chamber into the tube, and means operativelyconnecting the suction operated air valve with said last mentionedvalve, to permit the automatic operation thereof.

In testimon whereof I ailix my signature in presence o two witnesses. Y

ROBERT W. KAMBAK. Witnesses:

THEO. H. J. S'rUn'r, C. C. Kaunas.

tube com-

